Selvedge printing apparatus for woven goods



March 8, 1938. H. NABHOLZ 2,110,306

SELVEDGE PRINTING APPARATUS 'FOR WOVEN GOODS Fi led Feb. 10, 1936Patented Mar. 8, 1938 UNITED STATES SELVEDGE PRINTING APPARATUS FORWOVEN GOODS Hans Nabholz, Zurich, Switzerland, assignor toMaschinenfabrik Riiti vormals Caspar Honegger, Ruti, SwiterlandApplication February 10, 1936, Serial No. 63,230

1 Claim.

Machines for printing trade marks or other indications on the selvedgesof clothare already known; in such machines the cloth, which is alwaysslightly varying in width, is guided by a special appliance generallyactuated by com pressed air or by electricity, in such a way that thestamp is put onv the selvedge always at exactly the same distance fromthe cloth-border.

In the apparatus according to the present invention it is not the clothselvedge which is guided under the stamp, but the stamp is displaced orsteered and follows the track of the selvedge.

Further for getting exact prints it is necessary, that all the lettersof the stamp are covered with an evenfilm of the ink; therefore it isnecessary that the roller which applies the ink to the stamp turn withthe same circumferential speed as the stamp and does so, before thestamp comes into contact with the roller. If the speed of the rollerwere less than the speed of the stamp thenthe first letter of the markwould get too much ink and produce an uneven print.

In the present invention a selvedge-printing apparatus is shown, inwhich the stamp is steered to follow exactly the selvedge-track andwhich is provided with a special appliance for laying a thin film of inkon the stamp by means of a roller, rotating with the samecircumferential speed as the stamp.

The annexed drawing shows diagrammatically an embodiment of theinvention:

Fig. 1 is a side View of the selvedge printing apparatus, fixed to aPalmer cloth finishing machine;

Fig. 2 shows the shaft-end of the stamp-bearer and the parts fordisplacing the latter on th shaft;

Fig. 3 shows the ink-box and the ink rollers, and as well as thestamp-bearer;

Fig. 4 shows some details of the stamp-bearer.

In order to show the working of the selvedgeprinting apparatus, thelatter is represented in Fig. 1 applied to a felt-cloth calender, aso-called Palmer, for finishing woven fabrics. I is the frame of such aPalmer, 2 is a heated cylinder, 3 a guiding cylinder for the felt-cloth4, and 5, 6, 1, 8, 9, Ill, II and I2 are guiding rollers for the feltcloth. The fabric I1 runs through the Palmer between the heated cylinder2 and the felt cloth 4, and is conducted over the guiding rollers l3,l4, l5, I6 and on its way one selvedge is marked by the stamp of theselvedge-printing apparatus, mounted on the supports I8, which are fixedto the Palmer.

These supports l8 carry a shaft l9, on which is placed the carrier 20 ofthe stamp plate 2|, movable to the right and to the left by means of akey and a groove. The shaft I9 is driven from the guiding roller 1 by achain by means of the chain wheels 22a and 22b and by the spur gearwheels 23 and 24.

The boss of the stamp-bearer 2!! has a groove 25, in which the end 26 ofthe spindle 21 enters, the latter being guided in a box 28 in thesupport ill by means of a key fixed to the box 28 and a groove along thespindle 21. The spindle 21 has a threaded surface and a chain wheel 33with a corresponding threaded bore mounted thereon. Said wheel 33 issecured by its flange 34 to the support is. Thus the wheel 33 whenactuated causes the spindle 21 to slide inwardly or outwardly in itsbearing and adjusts the stamp carrier 2B.

A pin 35a on the rod 35 which is placed at an adequate distance of theroller l4 and which is fixed to the spindle 21, indicates whether thecloth-selvedge runs straight or whether its track deviates to the rightor to the left. When such a deviation takes place, then the chain wheel33 is turned by the attendant of the machine by means of the handwheel30 on the steering post 29, whereby the chain wheel 32 and the chainalsoare turned so that the spindle 2-1 is made to slide along the key fixedto the box 28, carrying with it the stamp-carrier 20. The chain wheel 33is turned. so long, until the track of the cloth selvedge coincidesagain with the pin 35a. The distance between the pin 35a and the rollerI4 is such that the time wanted for the cloth to run through thisdistance, is just sufficient for removing the spindle 21 so much thatwhen the part of the cloth which was deviating from the straight trackarrives on the roller M, then its border runs at an unchanged distanceof the stamp track.

The stamp-ink is poured in the box 36 and is taken from there by asystem of rollers 31, 38, 39, 40, 4!, driven from the shaft I9 by meansof the chain-wheels 42 and 43, the small shaft 44 and the toothedspur-wheels 4546. These rollers 31-4! grind well the ink and transformit into a thin film, which is applied evenly on a swinging roller 41,which by means of the cam 38, the double lever 49 and the connecting rod50 is oscillated about the pin 5|. The cam 48 is so formed that theswinging roller 41 is brought to a point in the track of the stampbefore the stamp arrives at that point. To the bearer 20 on the side ofthe stamp 2| is screwed a segmentlike piece 52, the track of which hasexactly the 15 a v the features specifically mentioned above and itdiameter as thetrack or the stamp; this piece 52 rotatesthe roller 41before the stamp touches it, whereby the circumferential speed ,of theroller 5Iand of the stamp 20 will beex- 'actly the same and the ink-filmis evenly transferred onto the stamp.

The printing by the vedge takes place'at the moment when the clothruns'over theroller 14, covered with rubber-and supported by the bearinglevers 53 on the shaft 54; by means of the handwheel 56, with spindle 51and the lever 55 the roller 54 is put into the right position accordingto the thickness of the fabric:

" the said invention, and that it might be applied 1 Obviously thepresent invention is not limited to must be understood that variousconstructional modifications may be-adopted within the scope of stamp onthe cloth-selr not only to a Palmer, butto any kind of machine throughwhich cloth is conducted.

What I claim is:

In an apparatus for printingtrade-marksor other indications on theselvedge of woven cloth: pieces, without thecloth borders being forclblyguided, the-combination with a member enabling the {attendant toascertainthe deviation of the cloth border from'a straight line'at anadequate distance from the place in the printing apparatus where thestamping takes place, of means enabling the attendantto laterally adjustthe stamp bearer. according to the said deviation before the deviatingpart of the cloth has reachedthe said place forthe purpose of obtainingp ints on the laterally adjusted cloth border always {in the samedistancefrom this border.

' HANS NABHOIQZ.

